JPH08144262A - Soil improvement machine - Google Patents
Soil improvement machineInfo
- Publication number
- JPH08144262A JPH08144262A JP30699194A JP30699194A JPH08144262A JP H08144262 A JPH08144262 A JP H08144262A JP 30699194 A JP30699194 A JP 30699194A JP 30699194 A JP30699194 A JP 30699194A JP H08144262 A JPH08144262 A JP H08144262A
- Authority
- JP
- Japan
- Prior art keywords
- ground
- sprockets
- machine
- machine frame
- sprocket
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、掘削しながら土壌と固
化材の粉体又はミルクとを攪拌混合して地盤を改良する
地盤改良機械に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a soil improvement machine for agitating and mixing soil and powder of solidifying material or milk while excavating to improve the soil.
【０００２】[0002]
【従来の技術】従来の地盤改良機械は、図４に示すよう
にベースマシンのアーム（何れも図示せず）の先端に取
着される機枠１０１の両側板１０１ａ，１０１ｂ間上部
にモータ１０２により回転駆動する駆動軸１０３を軸架
し、該駆動軸に駆動スプロケット１０４を装着し、前記
両側板１０１ａ，１０１ｂの下端に取り付けた門状の支
持枠１０５の両側板１０５ａ，１０５ｂに軸架させた回
転軸１０６に従動スプロケット１０７を装着し、前記駆
動スプロケット１０４と従動スプロケット１０７間に無
端状のチエン１０８を巻装し、駆動モータ１０２の回転
駆動により従動スプロケット１０７を回転させ、前記回
転軸１０６の外周面に突設した多数の攪拌翼１０９で地
盤を掘削し固化材を供給しつつ改良を行なうようにして
いる。2. Description of the Related Art In a conventional ground improvement machine, as shown in FIG. 4, a motor 102 is installed above both side plates 101a and 101b of a machine frame 101 attached to the tip of an arm (not shown) of a base machine. The drive shaft 103 that is rotationally driven by the above is mounted on the drive shaft, the drive sprocket 104 is mounted on the drive shaft, and the drive shaft 103 is mounted on the side plates 105a and 105b of the gate-shaped support frame 105 attached to the lower ends of the side plates 101a and 101b. The driven sprocket 107 is mounted on the rotary shaft 106, the endless chain 108 is wound between the drive sprocket 104 and the driven sprocket 107, and the driven sprocket 107 is rotated by the rotation drive of the drive motor 102, and the rotary shaft 106 is rotated. The ground is excavated by a large number of agitating blades 109 projecting from the outer peripheral surface of, and the solidifying material is supplied while being improved.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、前記地
盤改良機械では、下部の回転軸１０６にのみ攪拌翼１０
９が設けられているため、地盤中における掘削・攪拌範
囲が狭くなり、勢い地盤の改良効率が上がらず、これに
より地盤の改良深さも１．５ｍ程度が限界であった。し
かも、固化材としては周囲への飛散を懸念してスラリー
状のものを使用していたが、スラリー状の固化材と粉体
状の固化材とのコスト面での比較では粉体状のものの方
が低廉であり、施工コストが高くなるといった課題が有
った。そこで、本発明は地盤の改良効率を向上させると
共に改良深度が伸び、更には粉体の固化材を使用可能と
して施工コストの低廉を可能とした地盤改良機械を提供
することを目的とするものである。However, in the ground improvement machine, the stirring blade 10 is provided only on the lower rotary shaft 106.
Since No. 9 is provided, the excavation and agitation range in the ground is narrowed, and the improvement efficiency of the vigorous ground cannot be improved, and the improvement depth of the ground is limited to about 1.5 m. Moreover, as the solidifying material, a slurry-like material was used because of concern about scattering to the surroundings. However, in comparison of the cost between the slurry-like solidifying material and the powdery solidifying material, the powder-like solidifying material is There was a problem that it was cheaper and the construction cost was higher. Therefore, an object of the present invention is to provide a ground improvement machine capable of improving the improvement efficiency of the ground and extending the improvement depth and further enabling the use of a powder solidifying material to reduce the construction cost. is there.
【０００４】[0004]
【課題を解決するための手段】かかる目的を達成するた
め本発明に係る地盤改良機械は、ベースマシンのアーム
の先端に取着される機枠の上部に回転駆動する駆動軸を
水平に軸架し、該駆動軸に駆動スプロケットを装着し、
また、前記機枠の下端部に回転自在な従動スプロケット
を水平に軸装し、前記駆動スプロケットと従動スプロケ
ット間に無端状のチエンを巻装し、該チエンの外周面に
攪拌翼を複数列設した構成からなる。In order to achieve such an object, a ground improvement machine according to the present invention has a drive shaft for horizontally rotating a drive shaft horizontally mounted on an upper portion of a machine frame attached to an end of an arm of a base machine. Then, attach the drive sprocket to the drive shaft,
Further, a rotatable sprocket is rotatably mounted at the lower end of the machine frame, an endless chain is wound between the drive sprocket and the driven sprocket, and a plurality of rows of stirring blades are provided on the outer peripheral surface of the chain. It consists of
【０００５】[0005]
【作用】機枠の上下部にそれぞれ駆動スプロケットと従
動スプロケットを配置し、両スプロケット間に無端状の
チエンを巻装し、該チエンの外周面に複数の攪拌翼を列
設してなるので、前記チエンを回動させることにより掘
削・攪拌範囲が広がると共に地盤の改良効率が上がり、
また改良深度も深くできて粉体状の固化材を使用できる
ようになる。Operation: A drive sprocket and a driven sprocket are arranged on the upper and lower parts of the machine frame, an endless chain is wound between both sprockets, and a plurality of stirring blades are arranged on the outer peripheral surface of the chain. By rotating the chain, the excavation and agitation range is expanded and the improvement efficiency of the ground is increased,
In addition, the depth of improvement can be deepened, and the powdered solidifying material can be used.
【０００６】[0006]
【実施例】以下本発明に係る地盤改良機械の一実施例を
図面と共に説明する。図１は地盤を掘削しつつ攪拌混合
する地盤改良機械を示す。該地盤改良機械は自走可能な
バックホー１（ベースマシン）から可動自在のアーム２
が延設され、該アーム２の先端に地盤中に下降して地盤
を掘削しかつ攪拌混合する掘削装置３が取着されてい
る。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the ground improvement machine according to the present invention will be described below with reference to the drawings. FIG. 1 shows a ground improvement machine for stirring and mixing the ground while excavating the ground. The ground improvement machine has a movable backhoe 1 (base machine) to a movable arm 2
And an excavation device 3 is attached to the tip of the arm 2 for descending into the ground to excavate the ground and to stir and mix.
【０００７】掘削装置３は図２及び図３に示すように、
前記アーム２の先端に機枠４が固着されており、その両
側板４ａ，４ｂ間の上部に駆動軸５が水平に軸架されて
いる。６は一方の側板４ａの外側に装着されて前記駆動
軸５を回転駆動させる可変駆動モータである。また、前
記駆動軸５には一対の駆動スプロケット７，７が設けら
れている。前記両側板４ａ，４ｂの下部に上下一対の横
杆８，８が横架され、これら横杆８，８から前記一対の
駆動スプロケット７，７と対応位置させて一対の支持枠
９，９が垂下される。そして該支持枠９，９の下端部に
従動スプロケット１０，１０が水平に軸装されている。The excavator 3 is, as shown in FIGS. 2 and 3,
A machine frame 4 is fixed to the tip of the arm 2, and a drive shaft 5 is horizontally mounted above the side plates 4a and 4b. Reference numeral 6 denotes a variable drive motor which is mounted on the outer side of one side plate 4a and rotationally drives the drive shaft 5. The drive shaft 5 is provided with a pair of drive sprockets 7, 7. A pair of upper and lower horizontal rods 8 and 8 are horizontally installed under the side plates 4a and 4b, and a pair of support frames 9 and 9 are formed from the horizontal rods 8 and 8 in positions corresponding to the pair of drive sprockets 7 and 7. Be drooped. The driven sprockets 10, 10 are horizontally mounted on the lower ends of the supporting frames 9, 9.
【０００８】１１，１１は前記一対の駆動スプロケット
７，７と従動スプロケット１０，１０間に無端状に張設
されるチエンであり、該各チエン１１，１１の外周面に
地盤を掘削して攪拌するための攪拌翼１２ａ，１２ｂが
複数列設されている。これらの攪拌翼１２ａ，１２ｂは
横巾の広い攪拌翼１２ａと攪拌翼１２ａより横巾の狭い
攪拌翼１２ｂが交互に配されて地盤の攪拌混合を効率よ
く行なわせるようにしている。なお、１３，１３，１
３，１３はチエン１１，１１のテンション用の補助スプ
ロケットである。なお、掘削装置３は約３ｍの長さを有
している。Numerals 11 and 11 are endlessly stretched chains between the pair of drive sprockets 7 and driven sprockets 10 and 10. The ground is excavated on the outer peripheral surface of each chain 11 and 11 and stirred. A plurality of stirring blades 12a and 12b for performing the above are provided. The stirring blades 12a and 12b are alternately arranged with a wide stirring blade 12a and a narrower stirring blade 12b than the stirring blade 12a so that the ground can be efficiently stirred and mixed. In addition, 13, 13, 1
Reference numerals 3 and 13 are auxiliary sprockets for tensioning the chains 11 and 11. The excavation device 3 has a length of about 3 m.
【０００９】１４は掘削装置３に沿うように一体に設け
られるセメント，石灰などの固化材の粉体又はミルクを
圧送して地盤中へ吐出するための粉流体圧送管であり、
１５は高圧縮空気を噴出するための高圧縮空気噴出管で
ある。これらは何れも先端側がＬ字形に屈曲形成され、
水平部１４ａ，１５ａが前記一対の支持枠９，９の一側
に固着されている。そして、粉流体圧送管１４の水平部
１４ａの先端に先端吐出部１６が設けられている。ま
た、高圧縮空気噴出管１５の水平部１５ａの先端に設け
られる先端噴出部１７は前記先端吐出部１６に近接させ
てほぼ同じ向きに設けられる。Reference numeral 14 denotes a powder fluid pumping pipe which is integrally provided along the excavation device 3 and which pumps powder or milk of a solidifying material such as cement or lime and discharges it into the ground.
Reference numeral 15 is a highly compressed air ejection pipe for ejecting highly compressed air. In each of these, the tip side is bent and formed in an L shape,
Horizontal portions 14a and 15a are fixed to one side of the pair of support frames 9 and 9. Further, a tip discharge portion 16 is provided at the tip of the horizontal portion 14a of the powder fluid pumping pipe 14. Further, the tip end ejection portion 17 provided at the tip end of the horizontal portion 15a of the highly compressed air ejection pipe 15 is provided close to the tip end ejection portion 16 in substantially the same direction.
【００１０】本発明は上記構成からなり、次に作用につ
いて説明する。チエン１１，１１を図１矢視方向に回動
させて掘削装置３を地盤を掘削しながら地盤中に深く下
降させ、粉流体圧送管１４から固化材の粉体又はミルク
を吐出させつつ該地盤を幅広く攪拌混合させる。また、
粉流体圧送管１４により固化材の粉体を吐出するときに
は、高圧縮空気噴出管１５の先端噴出部１７から高圧縮
空気を同時に噴出させるようにする。これにより固化材
が一個所にかたまらず広く拡散することが可能となる。
そして、このように地盤を改良することにより改称深度
が３．５ｍ位まで達っすることになる。The present invention has the above-mentioned structure, and the operation will be described below. Rotating the chains 11, 11 in the direction of the arrow in FIG. 1 to lower the excavation device 3 deeply into the ground while excavating the ground, and discharging powder of the solidifying material or milk from the powder fluid pump 14 to discharge the ground. Stir and mix widely. Also,
When the powder of the solidifying material is discharged by the powder fluid pumping pipe 14, the highly compressed air is simultaneously jetted from the tip jet portion 17 of the highly compressed air jet pipe 15. This allows the solidifying material to spread widely without concentrating in one place.
Then, by improving the ground in this way, the renamed depth will reach about 3.5 m.
【００１１】[0011]
【発明の効果】以上述べたように、本発明の地盤改良機
械によれば、機枠の上下部にそれぞれ駆動スプロケット
と従動スプロケットを配置し、両スプロケット間に複数
の攪拌翼を列設したチエンを張設したので、チエンの回
動により地盤を幅広く掘削・攪拌することができ、これ
により改良効率が上がるばかりでなく、地盤の改良深度
も伸ばすことができる。更に、改良深度を伸ばすことに
より、粉体の固化材を使用でき、引いては施工コストの
低廉にも寄与することができるという効果を奏する。As described above, according to the ground improvement machine of the present invention, the driving sprocket and the driven sprocket are arranged at the upper and lower portions of the machine frame, and a plurality of stirring blades are arranged between the two sprockets. Since it is stretched, the ground can be widely excavated and agitated by the rotation of the chain, which not only improves the improvement efficiency, but also extends the improvement depth of the ground. Further, by extending the improvement depth, it is possible to use a powder solidified material, which in turn contributes to a low construction cost.
【図１】本発明の地盤改良機械の斜視図。FIG. 1 is a perspective view of a ground improvement machine of the present invention.
【図２】掘削装置の正面図。FIG. 2 is a front view of the excavator.
【図３】同上側面図。FIG. 3 is a side view of the same.
【図４】従来の掘削装置の正面図。FIG. 4 is a front view of a conventional excavator.
１ ベースマシン（バックホー） ２ アーム ３ 掘削装置 ４ 機枠 ５ 駆動軸 ７，７ 駆動スプロケット １０，１０ 従動スプロケット １１，１１ チエン １２ａ，１２ｂ 攪拌翼 1 Base Machine (Backhoe) 2 Arm 3 Excavator 4 Machine Frame 5 Drive Shaft 7,7 Drive Sprocket 10,10 Driven Sprocket 11,11 Chain 12a, 12b Stirrer
Claims (1)
る機枠の上部に回転駆動する駆動軸を水平に軸架し、該
駆動軸に駆動スプロケットを装着し、また、前記機枠の
下端部に回転自在な従動スプロケットを水平に軸装し、
前記駆動スプロケットと従動スプロケット間に無端状の
チエンを巻装し、該チエンの外周面に攪拌翼を複数列設
したことを特徴とする地盤改良機械。1. A drive shaft, which is rotationally driven, is horizontally mounted on an upper part of a machine frame attached to an end of an arm of a base machine, and a drive sprocket is mounted on the drive shaft, and a lower end of the machine frame. The driven sprocket that can rotate freely is mounted horizontally on the
A ground improvement machine characterized in that an endless chain is wound between the drive sprocket and the driven sprocket, and a plurality of agitating blades are provided on the outer peripheral surface of the chain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30699194A JPH08144262A (en) | 1994-11-15 | 1994-11-15 | Soil improvement machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30699194A JPH08144262A (en) | 1994-11-15 | 1994-11-15 | Soil improvement machine |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP464398A Division JPH10204868A (en) | 1998-01-13 | 1998-01-13 | Soil improving machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08144262A true JPH08144262A (en) | 1996-06-04 |
Family
ID=17963705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30699194A Pending JPH08144262A (en) | 1994-11-15 | 1994-11-15 | Soil improvement machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08144262A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05280043A (en) * | 1992-04-01 | 1993-10-26 | Hokushin Ind Inc | Method and device for excavation of continuous underground wall |
-
1994
- 1994-11-15 JP JP30699194A patent/JPH08144262A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05280043A (en) * | 1992-04-01 | 1993-10-26 | Hokushin Ind Inc | Method and device for excavation of continuous underground wall |
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